I have lots of friends, as do you, who will say that "I don't really  think there's a God because I can't see them, I can't touch them, I can't taste them...I don't think there's a God beacuse all i see in the world is pain and suffering. I don't think a God would allow that to happen." 

The problem is that the people who are saying these things are using a highly limited sensory experience to come to that conclusion. They're using earthly conventions like notion of social justice, and subjective points of view like people in pain or people feeling judgement. They might be using simple reasoning to limit what they believe exists to what they can see, taste, touch, see, and smell.

The problem as that, the senses we use to make decisions and grow in the earthly realm, are necessary but not sufficient to explore God in the spiritual realm. 

In short, You might be trying to play Marco Polo...but God is playing Hide and Seek. In Marco Polo, you're limiting your sense of sight and movement. You're stuck in the pool and your eyes are closed, and you're responding only to the sounds of someone saying "polo". But if God is playing hide and seek. That means you need to open your metaphorical eyes, get out of the metaphorical pool...and start searching with a different lens than you would search for the answer to a game show question on Google. You can't use the same senses and tools to find God that you would to find your next used car.

For those who are opening their hearts up to God for the first time...consider prayer.